Nortel BCM 3.7, Manual

Page: 690 / 1004

690 V.90 modem dial up
N0008589 3.3
3 Press the TAB key to save your settings.
V.90 modem dial up
Business Communications Manager is equipped with an internal V.90 modem that connects to
your phone line with a RJ-11 connector. The V.90 modem has the following features:
• V.90 56 kbps ITU standard
• V.34 33.6 kbps ITU standard
• V.42/MNP 2-4 error control
• V.42 bis/MNP 5 data compression
• compatible with ITU and Bell Standards from 56 kbps down to 1200 bps
The V.90 modem WAN connection always uses PPP as the link layer protocol. For correct
operation, the link must be connected to a remote access server (RAS).
Business Communications Manager supports the following authentication features:
• Password Authentication Protocol (PAP)
• Challenge Authentication Protocol (CHAP)
The information in this section includes:
• “Enabling and disabling the V.90 modem interface”
• “Configuring the V.90 modem interface”
Enabling and disabling the V.90 modem interface
If you want to the use the V.90 modem as a backup WAN connection or as interface to send
SNMP traps to the SNMP Manager, you must enable the V.90 modem interface.
If you are not using the V.90 modem interface for WAN backup or SNMP traps, Nortel Networks
recommends that you disable the modem to help prevent unauthorized access to the Business
Communications Manager.
To enable the V.90 modem interface:
1 On the navigation tree, click the Resources key and click the Dial Up key.
2 Click the V.90 heading.
3
Click the Modem Status drop list and click Enabled .
4 Press the TAB key to save the settings.
Note: The modem is capable of receiving at a maximum speed of 56 kbps and
transmitting at a maximum speed of 31.2 kbps. Because of FCC regulations, receiving
speed is limited to 53 kbps. Current line noise can impact the speed of the modem.